plz help me soon>What does the transformation f(x) - 8F(x) do to the graph of f(x)? shrinks it horizontally shrinks it vertically stretches it horizontally stretches it vertically​

For a read-a-thon, jay and odhràn each started reading a book at the same time and continued reading for several hours. jay's book had 278 pages, and he read 55 pages per hour. odhràn's book had 238 pages, and he read 45 pages per hour. after how many hours did they have the same number of pages left, and how many pages were left?

Asunflower was 20 1/2 inches tall. over the next 6 months, it grew to a height of 37 inches tall. what was the average yearly growth rate of the height of the sunflower? ? plz write a proportion to solve i will give you 100 points

At noon a tank contained 10cm water. after several hours it contained 7cm of water. what is the percent decrease of water in the tank?